JCTXTC2 Smart Temperature Switch
â– Â The temperature sensing element of the JCTXTC2 intelligent temperature switch is different from the mechanical thermal expansion and contraction principle, but uses a high precision platinum RTD as the temperature sensor, when the medium temperature changes, its resistance value changes with the characteristics to detect the temperature. The integration of high-precision industrial circuit components, with high stability, non-contact type of intelligent temperature switch.
Fields Of Application
Monitoring of oil circuit temperatures    Cement industry
Electromechanical automation          Metallurgical industry
Lubrication systems                  Environmental industry
- Price Term: FOB/CIF/EXW/DAP
- Package: Exported Wooden case or according to customer request
- Delivery Time: Â 7 to 10 working days
- Transports: By sea, by air, by high express
- Shipment Port: Shanghai Port
- Origin of Place: Jiangsu
- Warranty: 12 Months
- Product Introduction
- Selection Table
- Wiring Diagram
- Setting Steps
- Dimensional Drawings
- Precautions
| Basic Parameters | |
| Power Supply | DC24V±5% or AC220V±5% |
| Measurement Range | -50~300℃(optional) |
| Settable Range | 20%FS-80%FS（best） |
| Display | 4 Digital LCD |
| Accuracy | 1%FS |
| Repeatability Error | ≤0.5%FSmax |
| Temperature Drift | ≤0.1%FSmax |
| Enclosure Protection Class | IP65 |
| Output | 4-20mA Load ≤ 600 ohms Accuracy 0.5%FS |
| Output Method | |
| Type | PNP transistor output, SPST switching output |
| Action Life | >1 million times |
| Response Time | Action time:15ms Release time:8ms |
| Process Connection | Stainless steel 304# M20×1.5(Regular) |
| Length Of Insertion Depth And Tube Diameter | Stainless steel 304# Insert depth 100 Tube diameter Φ8 (Regular) |
| Environmental Conditions | |
| Media Temperature | -50-300℃ |
| Ambient Temperature | -25-80℃ |
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JCTXTC2 – A B Â C Â Â Â D Â E F Â Â G Â H |
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| Note: Special Requirements To Be Specified At The Time Of Contracting | |||||
| A: Power Supply | |||||
| Code | Power Supply | ||||
| 1 | DC24V | ||||
| 2 | AC220V | ||||
| B: Sensor type | |||||
| Code | Sensor Type | ||||
| PT | PT100 Platinum RTD | ||||
| C: Measurement Range | |||||
| Code | Measurement Range | Code | Measurement Range | Code | Measurement Range |
| A1 | 0-100℃ | A2 | 0-150℃ | A3 | 0-200℃ |
| A4 | 0-250℃ | A5 | 0-300℃ | A6 | 0-160℃ |
| A7 | -10-100℃ | A8 | -50-100℃ | A9 | -50-250℃ |
| B1 | -40-80℃ | B2 | -40-200℃ | B3 | 0-50℃ |
| B4 | -10-200℃ | B5 | -20-240℃ | B6 | -40-120℃ |
| D: Logic Output | |||||
| Code | Logic Output | ||||
| 10 | One way PNP (DC24V, 3A max) | ||||
| 11 | Two way PNP (DC24V, 3A max) | ||||
| 12 | Three way PNP (DC24V, 3A max) | ||||
| 30 | One way relay (DC24V/AC250V, 3A max) | ||||
| 31 | Two way relay (DC24V/AC250V, 3A max) | ||||
| 32 | Three way relay (DC24V/AC250V, 3A max) | ||||
| 34 | Four way relay (DC24V/AC250V, 3A max) | ||||
| E: Output Type | |||||
| Code | Output Type | ||||
| 0 | Active output (only PNP output can be selected) | ||||
| 4 | On/off signal | ||||
| F:Analogue Output | |||||
| Code | Analogue Output | ||||
| N | / | ||||
| B | 4-20MA | ||||
| G:Process Connection | |||||
| Code | Process Connection | ||||
| 54 | M27*2 External insertion depth 100, diameter Φ10 (stainless steel 304#) | ||||
| 62 | M27*2 External insertion depth 200, diameter Φ10 (stainless steel 304#) | ||||
| 66 | M27*2 External insertion depth 100, diameter Φ8(stainless steel 304#) | ||||
| 79 | M20*1.5 External insertion depth 100, diameter Φ8(stainless steel 304#) | ||||
| 82 | G1/2″ External insert depth 100, diameter Φ8 (stainless steel 304#) | ||||
| 88 | NPT1/2 External insertion depth 150, diameter Φ8 (stainless steel 304#) | ||||
| H: Explosion-Proof Type | |||||
| Code | Explosion-proof type | ||||
| d | ExdIICT6 (explosion-proof) | ||||
| 0 | No requirement, can ignore this item | ||||
Note: If with analogue output, up to three logic outputs are available.
Note: The supply voltage is determined by the selection, please do not randomly wired; the number of output channels is determined by the selection, no extra channels do not need to be wired.
1.Key Description
| Project | Function Description | Operating Procedures |
| Basic Settings | Access to basic settings | Press “Set” for 3 seconds to display “ST1”, press “â–²” to cycle through the panel: “ST1” “ST2” “ST3” “ST4” “Ec”. |
| St1
（First Circuit Set Point） |
Start when temperature rises and temperature ≥ ST1 value
the state switching starts (i.e.: normally open →normally closed, normally closed → normally open or DC24V ®→DC0V，DC0V→DC24V) |
When “ST1” is displayed, press the “Enter” key to enter the setting state of the first loop setting value, the blinking bit is modifiable at this time, press the “â–²” key, the blinking bit can be modified from 0 to 9 in a cycle, press the：”â–¶” key, the blinking bit can be moved in a cycle from thousands to single digits.  Press the “â–²” and “â–¶ ” keys to complete the setting of the set value, press the “Enter” key to store the set value and jump to display “ON ” or “OFF”. |
| ON/OFF (First Circuit Start State) | When “ON” is displayed, the circuit is switched on
When the temperature rises and the temperature < ST1 value, the output is normally closed or DC24V; When “OFF” is displayed, the circuit is normally closed or DC24V when the temperature rises and the temperature is <ST1.
|
Press the “â–²” key to switch back and forth between “ON” and “OFF”; press the “Enter” key to store the status value and jump to display “OL”. |
| OL (First Circuit Delay Value) | Temperature drops and temperature ≤ (ST1-OL)
value, the output state is reset. |
When “OL” is displayed, press the “Enter” key to enter the setting state of the first circuit set value, the blinking bit is modifiable at this time, Press the “â–²” key, the blinking digit can be cyclically modified from 0 to 9, press the “â–¶ ” key, the blinking digit can be cyclically moved from thousands to individual digits. Press the “â–²” and “â–¶ ” keys to complete the setting of the set value, press the “Enter” key to store the delay value and jump to the display of “ST1. “ |
| The St2 Circuit Is Set As Above For The St1 Circuit And Will Not Be Described Further. | ||
| Exit | Exit basic settings | When “Ec” is displayed, press the “Enter” key to exit the basic settings. |
2.Set flow chart
Note: Depending on the model and the number of output circuits, some circuit settings are not valid.
â‘ Setting value: Pressure value at which the switch operates.
â‘¡Start output state: oN for display pressure below set value switch action; oFF for display pressure above set value switch action.
â‘¢Delay value: delay value = set value – reset value, i.e. switching difference.
3.Fine Adjustment Of Current Values
Press and hold the “ENTER” and “â–²” keys simultaneously for 5 seconds, the DA value corresponding to 4mA will be displayed roughly, press the “â–¶” key to adjust down, “â–²” key to adjust up, press the “ENTER” key to enter 20mA fine adjustment, press the “▶ ” key to adjust down, “â–²” key to adjust up. After adjustment，Press “ENTER” key to exit, that is to complete the current fine-tuning. (Note: The factory has been adjusted, no need to fine-tune under normal conditions.)
â‘ Wiring with electricity is strictly forbidden.
â‘¡Opening the panel is strictly forbidden.
â‘¢Good grounding.
â‘£Wiring should be done according to the instructions.
